Improvement in electro-magnetic station-indicators



I.: w. WHITE. Electro-Magnetic Station-Indiaturs.v

. Patened Aug.18,1874.

\ WBTNESSES ATTUBNEYS.

UNITED STATES PATENT OEEIcE.

YCHARLES W. WHITE, or NEW YoEk, N. Y.

IMPROVEMENT IN ELECTRO-MAGNETIC STATION-INDICATORS.

Specification forming part of Lettersl Patent No. 154,309, `dated August 18, 1874 application filed February 28, 1874.

To all whom it may concern:

ABe it known that I, CHARLES W. WHITE, of New York city, in the county and State of New York, have invented a new and Improved Electro-Magnetic Station-Indicator, of which the following is a specification:

In the accompanying drawing, Figure l represents a vertical transverse section of my improved electro magnetic station indicator 5 Fig. 2, an end view of the same; and Fig. 3, a diagram, showing connection of indicator with battery iu baggage-car.

Similar letters of reference indicate corresponding parts.

A representsan indicator; B, the ribbon, Winding and unwinding on and from rolls C C journaled in case D. G1 C1 are gear-wheels on the ,shafts of these rolls, and connected by spur-wheel O2, While E is a spur-wheel, and

- E? E2 ratchet-Wheels on shaft El, whose direction in rotating depends upon which of the ratchetwheel turns it. The ratchets are turned by spring-pawlsF F pivoted by links A2 to the upper end of levers G that are attached to the armatures H H of magnets H H, and thrown up by spring L. These two -sets of ratclletwheels, pawls, levers, armatures, and magnets aredisposed oppositely to each otheri. c., so that one set shall turn the indicator in one direction and the other set willcause it to revolve in the opposite direction.` The indicators are placed in any convenient position in the cars, and from each set of magnets an independent circuit is led to the car, from whence the indicator is to be controlled, where a suitable circuitmaking device is placed in each of the circuits. Upon one of these circuits being closed, the indicating-ribbon is caused to be unwound from the top roll and Wound upon the lower roll, the other circuit being closed and the ribbon wound in the opposite direction.

So far I have described what is already known to the public.

I connect a spring check-pawl, M, Working in a ratchet, M on shaft E, with thepawls F by means of the levers N N, so that as a carrying-pawl, Fis operated, the check-pawl is lifted, and, as soon as the former returns to its place the latter locks in the ratchet M. rIhus I regulate the intermittent movements oi' the ribbon, the check-pawl and ratchet holding the rolls rmly and preventing its movement, so that the name on the indicating-ribbon is shown until the indicator be properly manipulated.

What I claim is- The combination, with shaft E, ratchets E2, and pawls F, of the ratchet M', check-pawl M, and levers N, arranged as and for the purpose specified.

OHAS. W. WHITE.

i Witnesses:

PAUL GOEPEL, T. B. MosHER. 

